I think DED would have to write a book to answer your more in depth request, maybe he has, I'd buy it. I think it is of value to keep reminding people, who seem to have very short memories, what just happened, at a relatively simple level. After all it is countering pretty simple negative attacks mostly. The sad thing is so few who should, will ever see it. I use Reader to send stuff from DED like this, to as many people i know, that worry Apple is about to go bust after reading CNET et al.
It doesn't even have to be a thesis. Simply cut down on the snark, and summarise the counterarguments to some of the more popular criticisms into a few bullet points. People like to point out how the ipad lacks true multitasking, has no ports, expandable memory, is closed, overpriced, requires expensive peripherals to connect to other devices, lacks mouse support (really?!?) and so on.
Instead, the question everyone should be asking is " The ipad remains popular despite all these perceived limitations. What exactly is the rationale behind this?" For all the criticism, it is an undeniable fact that the ipad is selling, and selling well because it works great and clearly resonates with buyers. Yet the way everyone glosses over this point and hails every new tablet entrant as the next ipad killer, you would think we are either still in early 2010 or in some alternate universe where the ipad never became a success.
What they fail to understand is that the ipad is so successful because it represents a holistic combination of software and hardware working together in harmony to create a great user experience for the consumer, and this matters more than simply being a laundry list of specs and features. I could go on, but I believe I would simply be preaching to the choir here.